C. Silvestri was a Starfleet officer in the 23rd century.
Silvestri was listed as a member of the Research and Development team on the dedication plaques of the USS Shenzhou and the USS Discovery. (DIS: "The Vulcan Hello", dedication plaque; DIS: "Context Is for Kings", dedication plaque)
Silvestri was listed as a Fleet Ops officer on the dedication plaque of the USS Enterprise. (DIS: "Such Sweet Sorrow")
This character was only mentioned in writing.
This officer was named after the assistant to the writers and writer Chris Silvestri.